Traditionally, the cantilever modal shape of liquid-filled tanks has been considered as the most critical mode. However, recent research has demonstrated that natural frequencies associated with some circumferential modes might be close to the frequency of earthquake excitation. This can lead to a resonance phenomenon, and consequently failure of the tanks. In this paper, we perform Natural Frequency Analysis of fluid-filled tanks, using finite element analysis. Modeling and solution employ ADINA potential-based flow elements, which require the assumption of inviscid, irrotational and incompressible flow. The problem is solved for different geometries and water levels of tanks; the results are compared with the current results in the literature and the difference is demonstrated.
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ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
September 24–28, 2005
Long Beach, California, USA
Conference Sponsors:
- Design Engineering Division and Computers and Information in Engineering Division
ISBN:
0-7918-4738-1
PROCEEDINGS PAPER
Natural Frequency Analysis of Liquid-Filled Tanks Available to Purchase
Rouzbeh Amini,
Rouzbeh Amini
Northeastern University, Boston, MA
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Grant Warner,
Grant Warner
Northeastern University, Boston, MA
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Hamid Nayeb-Hashemi
Hamid Nayeb-Hashemi
Northeastern University, Boston, MA
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Rouzbeh Amini
Northeastern University, Boston, MA
Grant Warner
Northeastern University, Boston, MA
Hamid Nayeb-Hashemi
Northeastern University, Boston, MA
Paper No:
DETC2005-84856, pp. 883-887; 5 pages
Published Online:
June 11, 2008
Citation
Amini, R, Warner, G, & Nayeb-Hashemi, H. "Natural Frequency Analysis of Liquid-Filled Tanks." Proceedings of the ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 1: 20th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C. Long Beach, California, USA. September 24–28, 2005. pp. 883-887. ASME. https://doi.org/10.1115/DETC2005-84856
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